LM4780 Bridged Amplifier Article
LM4780 Parallel Amplifier Article
LM4702 Plus Lateral MOSFET 120 Watt Amplifier
Kees Heuvelman, Kees Brakenhoff and Wim de Haan's Direct Coupled EL84 Design
National's LM4702 driver chip meets the Sanken Darlington's
The Besta_PAS_ta  mods for Dyna Marantz Scott, etc.
Link to Steve Bench's LILSIS
 

LM4702 Driver Board